EP 2759812 B1 20180117 - Method and apparatus for capacitative fill level measurement of liquids or bulk materials
Title (en)
Method and apparatus for capacitative fill level measurement of liquids or bulk materials
Title (de)
Verfahren und Vorrichtung zur kapazitiven Füllstandsmessung von Flüssigkeiten oder Schüttgütern
Title (fr)
Procédé et dispositif de mesure capacitive du niveau de remplissage de liquides ou produits en vrac
Publication
Application
Priority
EP 13000429 A 20130129
Abstract (en)
[origin: EP2759812A1] The method involves applying different potentials (4, 9, 10) to respective first, second and third electrodes (5, 5', 5'') of a measuring sensor (8) in a measuring mode, where the third electrode is operated as a guard electrode. One of the potentials is applied to one of the electrodes in another measuring mode, and another potential is applied to an electrically conducting container wall or to an auxiliary electrode arranged within a container (2). Fill level measurement of liquids and/or bulk materials in the container is carried out in the former mode or in the latter mode. An independent claim is also included for a device for capacitive fill level measurement of liquids and/or bulk materials in a container.
IPC 8 full level
G01F 23/26 (2006.01)
CPC (source: EP US)
G01F 23/263 (2013.01 - US); G01F 23/266 (2013.01 - EP US); G01F 23/268 (2013.01 - EP US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 2759812 A1 20140730; EP 2759812 B1 20180117; AU 2014200452 A1 20140814; AU 2014200452 B2 20171123; CA 2839042 A1 20140729; CA 2839042 C 20200609; US 2014208846 A1 20140731; US 9429461 B2 20160830
DOCDB simple family (application)
EP 13000429 A 20130129; AU 2014200452 A 20140128; CA 2839042 A 20140110; US 201414162441 A 20140123